Modern pulp and paper making, a practical treatise: by G. S. Witham, Sr. Second edition. 705 pages, illustrations and plates, 16 × 24 cms. New York, Reinhold Publishing Corp., 1942. Price $6.75

Manufacture of soda: by Te-Pang Hou, Ph.

Manufacture of soda: by Te-Pang Hou, Ph.D. With special reference to the Ammonia Process, a practical treatise, the second edition. 590 pages, illustrations and tables, 16 × 24 cms. New York, Reinhold Publishing Corporation, 1942. Price $9.50

✍ R.H. Oppermann 📂 Article 📅 1942 🏛 Elsevier Science 🌐 English ⚖ 67 KB

## BOOK REVIEWS. [J. F. I. practical. Each has a discussion of sufficient length to cover principles and for orientation. The last part is an appendix containing helpful tables and curves. The subject is well presented in logical order. The plainness of the explanations and the completeness of c